Physics Design and Study of the BSNS RCS Injection System

TANG Jing-Yu; QIU Jing; WANG Sheng; WEI Jie

Chinese Physics C> 2006, Vol. 30> Issue(12) : 1184-1189

Physics Design and Study of the BSNS RCS Injection System

Institute of High Energy Physics, CAS, Beijing 100049, China2 Brookhaven National Laboratory, Upton, NY 11973, USA

Abstract
HTML
Reference
Related

PDF

Abstract：
With the Beijing Spallation Neutron Source (BSNS) accelerator in design, intense H^－ beams are first accelerated by the linac and then injected in the rapid cycling synchrotron (RCS) for accumulation and further acceleration. The injection system uses H^－ stripping and phase space painting method to fill the large ring acceptance with the linac beam of small emittance. The method is crucial to maintain low beam loss rate during the accumulation and initial acceleration. Different from the injection design of similar high-intensity accelerators in the world, the BSNS ring injection is accomplished by magnetic elements that are completely contained in a 9 meter-long uninterrupted space of near-zero dispersion. With the accumulated 1.9×10¹³ particles, space charge effects play a very important role. The 3D simulations including space charge effects have been carried out to optimize the injection design. This paper presents the physics design, computer simulation results and design optimization of the injection system.

References

[1]

. CSNS Accelerator Team. Conceptual Design on Chi-nese Spallation Neutron Source-Accelerators, 2004. IHEP-CSNS-Report/2004-01E (in Chinese)(CSNS 加速器项目组. 中国散裂中子源(CSNS)概念设计–加速器方案设计与关键技术研究, 2004. IHEP-CSNS-Report/2004-01E)2. CSNS Accelerator Team (Written: TANG J Y). WorldDevelopment of Spallation Neutron Sources and CSNSProject. Proceedings of 7th National Assembly and Sympo-sium of Accelerator Society. Anhui-Taiping, 2004(in Chinese)(CSNS 加速器项目组(唐靖宇执笔). 国际散裂中子源的发展和CSNS计划. 粒子加速器学会第七次全国会员大会暨学术交流大会, 安徽太平, 2004)3. WANG Sheng, QIN Qing, TANG Jing-Yu et al. HEP NP, 2006, 30(Supp.Ⅰ): 123-125(in Chinese)(王生, 秦庆, 唐靖宇等. 高能物理与核物理, 2006, 30(增刊Ⅰ):123—125)4. Rees G H. Injection, CERN Accelerator School: CERN 94-01. 731-7435. WEI J. Reviews of Modern Physics, 2003, 75(4): 1383-14326. Galambos J D et al. ORBIT User Manual Version 1.10.July 19997. Rees G H. Status Report on ISIS. PAC 1987. WashingtonD.C., March 1987. 830-833

[1]	WEI Tao , WU Qing-Biao , LI Wen-Qian . Beam collimation for CSNS/RCS. Chinese Physics C, 2010, 34(4): 506-511. doi: 10.1088/1674-1137/34/4/018
[2]	WEI Tao , FU Shi-Nian , QIN Qing , TANG Jing-Yu . RF trapping and acceleration in CSNS/RCS. Chinese Physics C, 2008, 32(6): 437-441. doi: 10.1088/1674-1137/32/6/005
[3]	ZHANG Wen-Zhi , LIU Gui-Min , ZHAO Li-Ying , DAI Zhi-Min . Physical Design of the SSRF Timing System. Chinese Physics C, 2008, 32(S1): 109-111.
[4]	DENG Chang-Dong , CHEN Fu-San , SUN Xian-Jing , CHEN Wan , SUN Yao-Lin , SHI Cai-Tu . CSNS Magnet System and Prototypes Fabrication. Chinese Physics C, 2008, 32(S1): 71-73.
[5]	SHEN Li , CHI Yun-Long , HUANG Chuan , TANG Jing-Yu . Design of Injection Painting Bumper Magnets Pulse Power Supply for CSNS/RCS. Chinese Physics C, 2008, 32(S1): 22-24.
[6]	OUYANG Hua-Fu , YAO Yuan . Thermal Analysis of CSNS RFQ. Chinese Physics C, 2007, 31(12): 1116-1121.
[7]	QIU Jing , TANG Jing-Yu , WANG Sheng , WEI Jie . Studies of Transverse Phase Space Painting for the CSNS RCS Injection. Chinese Physics C, 2007, 31(10): 942-946.
[8]	HU Wei , ZHANG Jing , QI Xin . A Digital Control Scheme of Power Supply System for RCS/CSNS. Chinese Physics C, 2007, 31(11): 1062-1066.
[9]	GUO Zhi-Yu , XIE Yi , LIU Ke-Xin , FANG Jia-Xun , YANG Xue-Qing , CHEN Jia-Rong . Physical Design of A Low-Energy-Spread RFQ Accelerator. Chinese Physics C, 2006, 30(S1): 114-116.
[10]	YAO Hong-Juan , ZHANG Tian-Jue , JIA Xian-Lu , GUAN Feng-Ping , WEI Su-Min , LV Yin-Long , LIN Yu-Zheng . Physics Design For Axial Injection System and Central Region of 100MeV High Intensity Cyclone. Chinese Physics C, 2006, 30(S1): 141-143.
[11]	WANG Yi-Fang , WANG Bing , LI Bing-Sheng . The Physical Design Research of new extraction System for SFC. Chinese Physics C, 2006, 30(S1): 147-149.
[12]	WANG Sheng , Qin Qing , TANG Jing-Yu , FANG Shou-Xian . The Lattice Design for BSNS Rapid Cycling Synchrotron. Chinese Physics C, 2006, 30(S1): 123-125.
[13]	XU Hao , LIU Zhen-An , JIN Da-Peng , WANG Da-Yong , ZHAO Di-Xin , GUO Ya-Nan . Physical Design of Main Drift Chamber Trigger for BESⅢ Experiment. Chinese Physics C, 2005, 29(4): 376-382.
[14]	CAO Xing-Zhong , WANG Bao-Yi , YU Run-Sheng , WEI Cun-Feng , XUE De-Sheng , WEI Long . Design of the Magnetic Field System for Beijing Intense Slow Positron Beam Transportation. Chinese Physics C, 2004, 28(5): 560-563.
[15]	LIU Hua-Feng , BAO Chao . Design of a γ-Ray Imaging System for Plant Studies. Chinese Physics C, 2002, 26(2): 192-196.
[16]	OUYANG Hua-Fu , XU Tao-Guang , YU Qing-Chang , GUAN Xia-Ling , LUO Zi-Hua . Analysis of Phase Velocity Designing on Superconducting Section of Proton Linac for Spallation Neutron Source. Chinese Physics C, 2001, 25(11): 1113-1119.
[17]	TANG JingYu , JIANG JunZhang , LI ZhiHui , XU XiangYang , WANG YiFang , YIN QuanMin . Study and Design of the Axial Injection System at SFC. Chinese Physics C, 2000, 24(12): 1173-1178.
[18]	FAN KuanJun , WANG XiangQi , PEI YuanJi . Study of HLS Injection System with DC Assistant Bump. Chinese Physics C, 2000, 24(7): 676-680.
[19]	Xu Chuncheng , Ye Yanlin , Chen Tao , Ying Jun , Ma Jingguo , Liu Hongtao . Study on the Parameters of the Lead Spallation Target. Chinese Physics C, 1999, 23(4): 402-408.
[20]	WEI Kai-Yu , LIN Zhen-Hua . THE DESIGN AND STUDY OF SPACE CHARGE EFFECT FOR THE BPL 750keV BEAM TRANSPORT SYSTEM. Chinese Physics C, 1984, 8(5): 588-595.

Access

Get Citation

TANG Jing-Yu, QIU Jing, WANG Sheng and WEI Jie. Physics Design and Study of the BSNS RCS Injection System[J]. Chinese Physics C, 2006, 30(12): 1184-1189.

TANG Jing-Yu, QIU Jing, WANG Sheng and WEI Jie. Physics Design and Study of the BSNS RCS Injection System[J]. Chinese Physics C, 2006, 30(12): 1184-1189. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-04-23
Revised: 2006-05-30

Article Metric

Article Views(3973)
PDF Downloads(836)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Physics Design and Study of the BSNS RCS Injection System

Corresponding author: TANG Jing-Yu,

Institute of High Energy Physics, CAS, Beijing 100049, China2 Brookhaven National Laboratory, Upton, NY 11973, USA

Received Date: 2006-04-23

Accepted Date: 2006-05-30

Available Online: 2006-12-05

Abstract: With the Beijing Spallation Neutron Source (BSNS) accelerator in design, intense H^－ beams are first accelerated by the linac and then injected in the rapid cycling synchrotron (RCS) for accumulation and further acceleration. The injection system uses H^－ stripping and phase space painting method to fill the large ring acceptance with the linac beam of small emittance. The method is crucial to maintain low beam loss rate during the accumulation and initial acceleration. Different from the injection design of similar high-intensity accelerators in the world, the BSNS ring injection is accomplished by magnetic elements that are completely contained in a 9 meter-long uninterrupted space of near-zero dispersion. With the accumulated 1.9×10¹³ particles, space charge effects play a very important role. The 3D simulations including space charge effects have been carried out to optimize the injection design. This paper presents the physics design, computer simulation results and design optimization of the injection system.

HTML

Reference (1)

Physics Design and Study of the BSNS RCS Injection System

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article